TW201228318A - System of dynamically allocating medium segment layers and method thereof - Google Patents

Abstract

The present invention discloses a system of dynamically allocating medium segment layers and its method. The system includes a storage unit for saving a plurality of medium segments, a transceiver unit, a decoder and a computation unit. The transceiver unit is used for receiving incoming segments that are stored in the storage unit, and decoded segments are outputted from the storage unit. The decoder is used for decoding the segments being downloaded in the storage unit. The computation unit is used for regulating video layer number of each medium segment based upon numbers of being downloaded segments, segments to be decoded and decoded segments.

Description

201228318 ys DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to a network video transmission and playback system and method thereof, and more particularly to a dynamic configuration media segment hierarchy system and method thereof for dynamically configuring audio and video media levels. [Prior Art] In the prior art, the Peer t0 Peer (P2P) network is a distributed network (p_) distributed network (4), each of which is equally reciprocal and must provide itself. Resources, including transmission points (pee〇 (4) _ bandwidth, storage space, computing power, to share each other's required information, this is very suitable for network audio and video media playback and drought. 35, in order to enable image transmission And the playback quality can be matched with the network frequency to make corresponding changes' related research and development (four) proposed (four) coffee video Codmg, scalable video coding) image coding compression technology. With =, the coded image will be split into multiple levels (four) called, audio and video level = two, indicating the better the quality of the image. But the technology itself benefits from changes in network bandwidth—the right level. Therefore, for the environment to maintain better quality, including the clarity of the face and the shadow of the Λ ( ( 四 四 四 四 四 四 种 种 种 种 种 种 种 种 种 种 种 种 种 种 种 客户 客户 客户 客户 客户 客户 客户 客户 客户 客户 客户 客户 客户 客户 客户 客户 客户 客户 客户In the case of media segments, the device needs to periodically measure the slice level: according to the available bandwidth, all the devices can be adjusted. 201228318 However, the PLA method does not adjust the mechanism of the media segment audio and video levels in real time in response to the bandwidth variation. Therefore, in an environment where the available bandwidth is drastically changed, the device using the PLA method often plays a scene in which the face is stopped, which will make the quality of the face become good and bad, resulting in smoothness of the image. Getting worse. Secondly, in order to achieve the purpose of periodically measuring the available bandwidth, it is necessary to use more efficient hardware and software, and the cost of the equipment is higher. SUMMARY OF THE INVENTION The problem to be solved by the present invention is to provide a system and method for adjusting the level of received media segments in response to network bandwidth. To solve the above system problem, the present invention discloses a dynamic configuration media segment hierarchy system, which includes a storage unit, a transceiver unit, a decoding unit and an operation unit. The storage unit is configured to store a plurality of media segments, including at least one of the at least one of the segments to be decoded, at least one segment to be decoded, and at least one of the at least one decoded segment. The transceiver unit is configured to receive a new segment into the storage unit, and output the decoded segment from the storage unit. The decoding unit is configured to decode the downloaded segment. The arithmetic unit adjusts the number of audio and video levels of each media segment according to the number of downloaded segments, the segments to be decoded and the number of decoded segments. To solve the above method problem, the present invention discloses a method for dynamically configuring a media segment hierarchy, comprising: providing a plurality of media segments including less than at least one downloaded segment, at least one segment to be decoded, and at least one decoded segment. One of them is composed of a new segment added to the above-mentioned 201228318 media segment; continuous downloading of the month β. and (4) code and output has been solved by Ma, and according to the snippet, bribe code 'To adjust the video level of the new segment. The number of R is characterized by the fact that the available bandwidth is not required to be de-periodically disclosed in the present invention, and only the number of audio and video levels of the newly downloaded media segment is determined according to the storage H: heavy media=number, In the audio-visual playback, the balance of the quality is achieved. (4) The smoothness of the material is transmitted between the smoothness of the S-player and the corresponding performance of the network. This avoids the stoppage of the amount of A and the change of the book quality. Can show a more gentle change; the discomfort caused by the change. There are mouth surface, mouth [Embodiment] A preferred embodiment of the present invention will be described in detail below with reference to the drawings. Referring to FIG. 1A, FIG. 1A is a schematic diagram of a system for applying to a peer-to-peer network system, and FIG. 1A is a schematic diagram of a system block of a user of the present invention. FIG. 1A and FIG. The dynamic configuration media segment hierarchy system disclosed in the present invention includes a storage list & (st(10) shape addition)%, a Transmit-Receive Unit A. Port, , 23, a decoder unit (22) and a computing unit (Computing Unit) 21. Each of the 20 devices is first connected to a video server (vide〇Distribution Server) 10. The arithmetic unit 2i sends a video and audio acquisition request (Vide〇Request) to the servo server 10 through the transceiver unit 23, and takes the 201228318 'video and audio servo. The device ίο returns the video supply message (Video Reply) 'which includes the video ID (Video ID), the transmission point list (Peer list), the buffer map information (Buffer Map, BM) ... and other information. The computing unit 21 obtains the network location of the upper peer peer 31 according to the video feed message, and exchanges the peer information with the upper media transport point 31 through the transceiver unit 23, which includes the buffer map information ( Buffer Map, BM ), Load (Loading), Available Bandwidth (AB), Packet Transit Time (R0und Trip Time)... • Network transmission information. The operation unit 2 is configured to perform the media segment (VS) download order according to the audio and video supply information and the transmission point information, and receive the media segment of the upper media transmission point 3丨 by the transceiver unit 23, Download the media clip before reaching the playback time of the media clip. The downloaded media segment will be stored in storage unit 24, which is considered a buffer. The decoding unit 22 performs decoding according to the video playback order of the media segments, so that the operation unit can play the video content by playing, software, programs, units or modules and groups. In addition, when any of the lower media transmission points 32 is connected to the client device 2, the computing unit also shares the relevant media segments to the lower media transmission point 32 of the table through the transceiver unit 22. The following is a diagram to illustrate the media segment processing. 2 is a schematic diagram of a media segment configuration of a dynamically configured media segment hierarchy system according to the present invention. Please refer to FIG. 1A and FIG. 1B for convenience. 201228318 The transceiver unit 23 is configured to receive the upper layer media transmission point. The new segment 44 is formed into two types after the download is completed. One is the segment 42 to be decoded, and the other is the decoded segment. Fragment fragment 44, regardless of the media segment 'will be saved in the new storage and the computing unit 21 will download at the transceiver unit 23, the pre-element 24 reserves enough space for storing the media segment, which will not be stored in the following. The media clip is considered to be the clip 41 in the download. Therefore, the types of media segments stored in the storage unit include three types: VSDownload 41, one for VSDing, and one for the decoded segment. The media segment stored in ^=24 is formed by at least one of the three: when the downloaded segment 41 is downloaded, the above-mentioned to-be-coded segment 42 or decoded segment 43 is formed. In addition, the to-be-decoded segment 42 is a media segment that is decoded by the decoding unit 22, and the decoded segment 'is decoded by the decoding unit 22 (or has been shared by other media transmission points). The media segment of the sender, but will still temporarily exist in the storage unit 24. Both the to-be-decoded segment 42 and the decoded segment 43 can be shared, and other client devices (or media transmission points, Peer) that are playing the same media are represented by a solid square, and the media slice & The dashed line in the middle represents the Scalable Video Coding (SVC) layer. Each media segment consists of a single or a few 9 jins, and it consists of a base layer (Base Layer, B table 201228318 shows), the extension layer (Enhancement layer n (n=l, 2, 3... in each figure), the x-axis represents time, the time gate of each media segment is not, all are s seconds, if the first The time when a media clip begins to solve the stone horse: ^false ^ The second media segment starts decoding at t+s, the segment count (byte C_t, BC ) 'and with the current = : positive: skin! :: The scalable video coding of the media clips will be refined, and the sub-counts (BC) will also have corresponding changes. The storage space of the unit 24 has its upper limit. Therefore, the U3 wants to store the new segment 44 in the storage unit.

The remaining storage space of It"0 不足 is not enough to store this new film β 44眸 “疋23 will cover the new segment 44: the long-lasting solved stone fragment 43. 丨任失存早早TC24]

The decommissioning unit 22 will store in the storage unit 24, and perform decoding according to the media playing order to store the decoded media. The figure shows the dynamic configuration of the media slice of the present invention. ^之实施实施例 Please refer to 1Α to Figure 2 to facilitate: The execution mode 'Figure 4Α to Figure 4' is the limit of the algorithm disclosed in the present invention. , ", can also be edited and executed using other kinds of programs, not dla, a first boundary 疋 层 配置 配置 ( (Dynamic LayerA11〇cati〇n, A) parameter definition: 201228318 The sum of the number of wrong facets; The number of decoded segments 43 in the storage list _ horse segment 42 and the decoded segment 43 1 = media segment extension = 24; 2, ···, Lmax }, Lmax = p 1 number of levels, 1 = { l Frequency coded video and audio level; Bc (1 b can provide the maximum number of scalable audio and video levels of 1 byte count number of denier' segment in the scalable video framed horse shadow such as BC (3) on behalf of the media The unit of the slice is the bit number (byte), the number; BC(m)=the number of byte counts of the byte count segment 43 of the 5th and 2nd layer extension layers of the storage list: 4: the stone horse segment 42 to be solved and the calcite马Β〇(η) = 24 Uyte) ^ The sum of the number of byte counts in f, its unit riding unit: the length of the playback time of the media segment, its unit is seconds (we); I target each end device on the P2P network The available bandwidth of the road, the unit is coffee (order rrd, bit/sec); the leg (1) 1 body is in the scalable video coding shirt level! The bit rate is dec〇dingbitmte, and its unit is bps (bit per second). It is explained herein that each client device 2 is in the p2p network, and the number of segments 42 to be decoded and the number of decoded segments 43 in the storage unit 24 vary with the download and decoding of the media segments. The current available bandwidth of each device 20 is ABbps 'Because each media segment has at least a base iayer data, the decoding unit 22 can decode the decoding, so the download from the first media segment to the solution Ma Pin should specialize in the start delay of BC(1)/AB seconds between 201228318, continue the segment while the first media segment is unplenished, and store it in the storage unit 24 for release. Also ^ when the 'transceiver unit 2 3 connected to the speed of the segment just save the early 疋 ^ section of the library (whether the segment 4 to be decoded Ρ θ 破 download - formed media piece is easy to cause in the storage unit 24 = already The decoded segment 43) is occupied, and the downloaded new segment 44 has sufficient storage space to be stored (buf-size means storage > (buf-slze - BC (10))' single... need to release the error = two use storage space ). During the operation, the general reading is designed to be released; the less important data space in ^ 24 is decoded. For the target & decoding segment 43, the decoded segment 43 is not helpful for the playback of the client device 2G or the decoding operation of the second device. It is only used by the donor to preferentially release his media transfer point. The use of the memory unit 24 has the storage unit to store the new segment 44. However, when the stored-decoded segment 43, i.e., is the segment 42' to be decoded, and no element 23 stops downloading the new, ^BC(n)=〇' computing material 21, the transceiver segment 44 is overwritten. A segment 44 is formed to prevent the segment 42 to be decoded from being newly entered 42, and the segment to be decoded that is to be decoded 22 will release the decoded W 4 segment 43 after being played, and the operation unit U breaks the occupation of the storage unit 2: space. At this time, the new segment 44 judged by the arithmetic unit 21 has enough usable storage space to store the next ’', so that the transceiver unit 23 resumes the operation of receiving the media segment 10 201228318. On the other hand, when the available bandwidth is small, the accumulation speed of the segment to be decoded in the error storage unit 24 (ie, the transceiver unit 23 receives and stores the new segment 44 degrees; t is related to the speed at which the downloaded segment 41 completes the download job) cannot catch up with the decoding unit. The decoding speed of 22 will result in the storage unit %, there is no segment 42 to be decoded for the decoding unit 22 to perform the decoding operation ", < BC(m) - BC(n) = 〇, causing the pause of the media playback, decoding Unit 22 ♦ Wait until the new segment 44 or the downloaded segment 41 completes the download before it can: continue w decoding. Here, the operation unit 21 calculates the current DBR(1) by the formula (1). When the DBR(1) is not greater than the available bandwidth (ab), the DBR of the video layer level of the media segment at this time does not exceed the available frequency. The maximum value of the width (AB). Next, the computing unit 21 calculates the available buffer space (ABS) of the storage unit 24 by using the formula (2), and finds the number of audio and video levels and the amount of data of the available storage space (ABS) and the new segment 44. The configuration area of the new segment 44 is released. DBR{1)

J 1, 2, ..., Zmax (1) ABS = buf_size - (BC (m) - BC (n)) (2) where buf - size is the storage space size of the storage unit 24, BC (m) - BC (n) is The number of BCs occupied by the segment 42 to be decoded. When the transceiver unit 23 performs the storage of the new segment 44 (ie, forms the downloaded segment 41), if the location stored in the new segment 44 is not the storage space occupied by the to-be-decoded segment 42 for storing the 201228318 gate, and There is no effect on the decoding operation of the decoding unit 22. - As shown in Figs. 4A to 4β, Sei_intervai() is an arithmetic function used by the arithmetic unit 21 to adjust the time interval of the number of video layers of all the media segments in the error-storing unit 24. The arithmetic unit 21 # first uses the formula of the T column (3) to obtain the undecoded segment time of the seven undesolved stone fragments according to the number (_) to be decoded in the storage unit 24.

The unresolved horse segment total time represents the length of time that the t 2 t decoded segment 42 stored in the current storage unit 24 can be played, that is, the undecoded segment 42 can be decoded by the decoding unit 22 in the undecoded slice. The solution 2 unit 22 does not have a work pause. Among them, represents the total time (UST) of undecoded fragments recorded by the month il.

UST=(m~n)xS — Obtain this: After the undecoded total time (UST), the operation order θ causes 帛kit to adjust the media # segment audio and video layer reduction time interval representative freeze-up g is the number of times the data is abnormally covered (6), the larger the value of k is, the smaller the interval between the video and audio levels of the segment is smaller. In the middle, the time interval between the π, Τ Τ && audio and video levels is shown in Figure 4Α and Figure 4Β: (4) interval = UST / 2 female environment Γ卩 Γ卩 = 驴 (four) body segment audio and video hierarchy The reaction network 咏i brothers are handed over and transported directly; 9] the audio and video levels of each segment: θ kinds of situations to adjust the media slice

12 201228318 Please also refer to FIG. 5 to illustrate a first type of media segment processing according to an embodiment of the present invention, which should be accompanied by FIG. 1A to FIG. 4B to facilitate understanding. The arithmetic unit determines that when there is no segment 42 to be decoded in the storage unit 24 that can be decoded by the decoding unit 22, a pause will occur once the decoded segment 43 has been played. When the arithmetic unit 21 determines that the situation occurs (or is about to occur), the cooperative transceiver unit 23 reduces the number of audio and video levels of the received new segment 44 (or the newly formed downloaded segment 41) to a minimum. That is to say, the formed segment 41 in the download has only the base layer of the most basic quality. Thus, the download completion time of the clip 41 in the download can be reduced, so that the number of clips 42 to be decoded in the storage unit 24 is rapidly increased to reduce the pause time, and although the video quality of the medium is sacrificed, the smoothness of the media play can be improved. Thereafter, the arithmetic unit 21 adjusts the k value to shorten the waiting time for re-adjusting the video layer level of each media segment, so as to quickly learn the improvement of the network environment and restore the quality of the audio and video included in the media. The value of k represents the exponential period halving coefficient. Increasing the value of k can cause the arithmetic unit to check the number of cycles of the segment 42 to be decoded in the storage unit 24 (ie, the buffer space), which is shortened rapidly, because the storage unit 24 The remaining number of segments to be decoded 42 may represent changes in the network environment; that is, the fewer segments 42 to be decoded indicate that the network is more congested. Moreover, in order to reduce the pause time (i.e., the time when the decoded segment 43 does not exist in the storage unit 24), the arithmetic unit judges whether the downloaded segment 41 is downloadable in the download, by judging that when downloading 13 201228318 The number of audio and video levels of the segment 41 is greater than one (i.e., at least the base layer on which the new segment 44 has been downloaded), and the operation unit 21 causes the decoding unit 22 to directly decode and play the base layer data to alleviate the pause. On the other hand, the number of audio and video levels of the segment 41 in the download is not greater than 1, that is, the operation unit 21 analyzes that the download amount of the segment 41 in the download is less than the byte count of the base layer, and determines that the decoding cannot be performed, and causes the decoding unit 22 to wait until After the download of the base layer of the clip 41 is completed, the decoding unit 22 decodes the base layer data in an effort to shorten the pause time. Please refer to FIG. 6 to illustrate a second type of media segment processing according to an embodiment of the present invention. Please refer to FIG. 1A to FIG. 4B for understanding. The second case is that when the available bandwidth (AB) is greater than the decoding rate (DBR) of the segment 42 to be decoded by the decoding unit 22, the decoded segment 41 of the storage unit 24 is caused by the decoding speed of the decoding unit 22 being fast enough. Subsequent segments 42 to be decoded are replaced to form all of the segments 42 to be decoded stored in storage unit 24. Even if the new segment 44 is the decoded segment 43, the decoding unit 22 does not decode it, and after the operation unit 21 plays the decoded segment 43 with the associated playback unit, the transceiving unit 23 replaces the decoded segment 14 with the newly downloaded segment 44. Fragment. From the past, the situation in which all the clips 42 to be decoded stored in the storage unit 24 are caused. Thereafter, in order to prevent the new segment 44 currently being downloaded from overwriting the previous segment 42 to be decoded, causing the video playback to jump, the operation unit 21 causes the transceiver unit 23 to stop the download of the media segment, and the decoding unit 22 continues to process the segment 42. Perform sequential decoding operations. 14 201228318 As the decoding operation progresses, the available storage space (ABS) of the storage unit 24 is the same as A. An #if=21 decision unit 24 has enough available storage space (ABS) to store the new segment 44 to be downloaded, i.e., the transceiver unit 22 resumes the download of the new segment 44. At the same time, the arithmetic unit 21 also adjusts the k value to shorten the waiting time for re-adjusting the video layer level to know the change of the available storage space (ABS) of the storage unit 24 to recover the download of the media segment. In the third case, when the interval of the media segment video layer level is reduced to zero, the operation unit resets the k value according to the calculation rule of FIG. 4A to FIG. 4B, so that the time interval of the media segment audio and video level is reduced. (interval) is restored to the previously obtained undecoded segment total time (UST) value, and then the Layer_Adjustment() operation function is used to adjust the video layer level of each media segment. Here, the adjustment method is divided into three cases. Please refer to FIG. 7 to illustrate a first mode diagram of processing a third type of media segment according to an embodiment of the present invention. Please refer to FIG. 1A to FIG. 4B for convenience. When the operation unit 21 calculates that the current undecoded segment total time (UST) is smaller than the previous undecoded segment total time (pre-UST), the available bandwidth on the P2P network connected to the guest device 20 becomes smaller, so that the available and transmitted frequencies are smaller. The rate at which the unit 23 receives the new segment 44 and continues to receive the downloaded segment 41 will be less than the decoding rate of the decoding unit 22, resulting in a gradual decrease in the number of segments 42 to be decoded in the storage unit 24. At this time, the operation unit 21 cooperates with the transceiver unit 23 to reduce the number of audio and video levels of the new segment 44, so as to avoid the buffering starvation problem of the storage unit 24 (ie, the number of segments 42 to be decoded is insufficient), 15 201228318 further makes the decoding unit 22 insufficient. The segment 42 to be decoded can be decoded, causing a stall problem. Please refer to FIG. 8 to illustrate a second mode diagram of processing a third type of media segment according to an embodiment of the present invention. Please refer to FIG. 4 to facilitate understanding. When the arithmetic unit 21 calculates that the current undecoded segment total time (UST) is equal to the previous undecoded segment total time (pre_UST), the available bandwidth representing the client device 20 in the P2P network does not change much. The operation unit 21 calculates the usable storage space (ABS) of the storage unit 24, and confirms that the storage space (ABS) ® is sufficient to store the new segment 44 to be downloaded, the operation unit 21 causes the transceiver unit 23 to directly download the new segment 44, and Adjust the number of audio and video levels. On the other hand, when the operation unit 21 determines that the storage space (ABS) is insufficient to store the new segment 44 to be downloaded, the cooperative communication unit 23 reduces the number of video layers (the virtual frame portion) of the new segment 44 before downloading the new segment. Up to the storage space (ABS) is sufficient to store the incoming segment 44 to be downloaded. Please refer to FIG. 9 to illustrate a third mode diagram of a third type of media segment processing according to an embodiment of the present invention. Please also refer to FIG. 4 to facilitate understanding. When the computing unit calculates that the current undecoded segment total time (UST) is less than the previous undecoded segment total time (pre_UST), the available bandwidth of the P2P network connected to the guest device 20 becomes larger, and the transceiver unit 23 receives the new incoming The speed of the segment 44 or the data of the segment 41 being downloaded is greatly increased. The speed and number of the segments 42 to be decoded in the storage unit 24 are also relatively increased, and the arithmetic unit 21 cooperates with the transceiver unit 23 to increase the number of video layers of the new segment 44 to be downloaded. The increase is such that the arithmetic unit 21 transmits the number of audio and video levels and the amount of data of the new segment 44 to be downloaded through the 16 201228318 transceiver unit 23. The arithmetic unit 21 determines whether the current usable storage space (ABS) of the storage unit 24 has sufficient accommodation space for storing the new segment 44 to be downloaded. When the arithmetic unit 21 determines that the available storage space (ABS) of the storage unit 24 is available for storing the new segment 44, it is determined whether the number of video layers of the new segment 44 is the maximum system configurable. If the number of audio and video levels of the new segment 44 is not the maximum value that can be set by the system, the computing unit 21 will determine whether the storage unit 24 has sufficient available storage space for storing the new segment 44 that adds a layer of audio and video hierarchy. Once the above conditions are met, the arithmetic unit 21 cooperates with the transceiver unit 23 to increase the number of video layers (dummy frame portion) of the downloaded new segment 44. On the contrary, the arithmetic unit 21 causes the transceiver unit 23 to receive the new segment 44 of the original video layer level. However, regardless of whether or not the number of video layers of the new segment 44 is adjusted, the arithmetic unit 21 records the total undecoded segment time (UST) of this time as a reference for adjusting the number of video layers of the new segment 44 next time. Please refer to FIG. 10 , which is a schematic diagram of adjusting the number of video layers of the media segment using PLA and DLA according to the embodiment of the present invention. FIG. 10 illustrates that in the case where the available bandwidth exhibits drastic changes, the client device individually adjusts the number of video layers of the media segment using PLA technology and DLA technology, and the pause phenomenon occurs. Each point represents a pause, and the Y-axis is the length of the pause. When the client device uses PLA technology and DLA technology, the sum of the pause times generated by the two conditions is 180.15 seconds and 40.65 seconds, respectively. From the figure, it can be observed that the client device 17 201228318 When using PLA technology, the pause of the face is much more serious. As long as the available bandwidth is reduced to 40 kbps, the image pause will occur because the PLA technology is based on the available frequency. The width is adjusted to adjust the video layer level of the media segment, and the adjusted video layer level reaches the highest video layer level of the downloaded media segment. Once the available bandwidth suddenly drops, the client device using PLA technology, its buffer space (buffer) will soon have no decoding segments to provide decoding, so the pause situation will be very serious. On the contrary, although the DLA technology disclosed in this case will have a pause, because DLA is slowly adjusting the number of audio and video levels of the downloaded segment according to the number of segments to be decoded, although the available bandwidth suddenly drops, the arithmetic unit will cooperate. The transceiver unit reduces the number of audio and video levels for downloading new segments, but the number of downloaded new segments will become more and the speed of forming the segments to be decoded is also faster. When the available bandwidth suddenly drops, there are still segments to be decoded in the storage unit for decoding by the decoding unit, so that the pause of the image can be avoided, so in the environment where the available bandwidth is drastically changed, DL A is compared with PL A. , can greatly reduce the time of the pause. FIG. 11 is a schematic flowchart of a method for dynamically configuring a media segment hierarchy according to an embodiment of the present invention. Please refer to FIG. 1A to FIG. 9 for convenience. The method flow is described as follows: A plurality of media segments are provided, which are comprised of at least one of the downloaded segments, at least one of the segments to be decoded, and at least one of the decoded segments (step S110). 18 201228318 As mentioned above, the types of media segments stored in the storage unit 24 include three types, one is a downloading segment (VSD〇wnl〇ad) 41, one is a to-be-decoded segment (VSWaiting) 42, and the remaining one is a decoded segment () 43. The media segment stored in the storage unit 24 is a combination of at least one of the three. The new segment 44 received by the transceiver unit 23 forms the above-mentioned downloaded segment 4 in the storage unit 24. When the downloaded segment is downloaded, the above-mentioned segment 42 to be decoded or the decoded segment 43 is formed. 〇

The segment 42 to be decoded refers to waiting for the stone unit to be solved. Performing the body: segment, the decoded segment 43 means that it has been decoded by the decoding unit (: it is provided by the media transmission point), and temporarily exists in the _ ^ segment. The media to be decoded 42 and the decoded segment 43 ^ 24 are being broadcasted, the media device of the media (or the media c calculates an undecoded segment of the segment to be decoded, the total time of the code segment is calculated for each media segment) f Arpeggio 2 utilizes uncooled (step SU5). As described above, 'undecoded segment total; = segment 42 to be decoded existing in storage unit 24 before meta-positive") represents the sold length 'that is, the total time of the undecoded segment (7) Playable time N The decoded segment 4.2 can be decoded by the decoding unit 22 to have a value of k introduced into the formula (4) to adjust the media's size, the size of the interval. The time to do the 9-level series download - the new segment to form the downloaded segment When downloading, the image is to be decoded or solved: the middle segment is completed, the chip is slave (step Sl2). 201228318 As mentioned above, the transceiver _ 1 a new incoming video 俨 ^ is used to receive the upper media transmission point 31 provided - for the heart:: the incoming media segment is divided into two types after the download is completed, the segment will be saved as solved ^ The media unit 23 that has been downloaded and downloaded is stored as an early element. Moreover, the arithmetic unit 21 transmits and receives the memory space of the media slice 2 (4) for storage 41. The media segment that is not downloaded into the downloaded segment is regarded as the segment stone S22 in the download, and all the segments 42 to be decoded are solved. The heart = segment 2 is decoded to form a decoded slice; = solution but 'decoded slice heart / v less Township S130). Decode the fragment "with (4) = 3! ^_ 元24. Waiting for the same - the media's client device u=:::: Others are playing according to the number of downloads in the download, to adjust the new ^ Temple decoding segment 42 and the solved segment 43 operation unit will be downloaded; 44 audio and video hierarchy (Step S14). The number of segments 43 is the comparison result of the reference frequency 2 42 and the decoded slice storage space (ABS), the client device: the available width UB of the deposit block 24, and the available frequency (bribery) of the new segment 4 connected to the P2P network. And the total time of the decoding speed undecoded segment with the decoding unit 22 (the number of audio and video levels of ^41, the current (pre-UST) alignment, the total number of time slices of the undecoded segment, and the like). ';? The whole time 1 downloads the video layer level of the new movie segment. The time 21 will re-adjust each media segment μ step S15G) ' and return to step S115 20 201228318 to continue the second time of the media segment download and decoding again. And share actions. That is to say, 'the client device 2G will cyclically perform steps 8115 to (10) to adjust the video and audio of the segment 41, the number of the decoded code segment 42 and the decoded segment 43 to be decoded, and other related media. The number of levels. . Month's reading Figure 12 is not a schematic diagram of the detailed configuration of the dynamic configuration media segment of the invention. In the above description, the operation unit 21 determines the type and number of the stored media slices • k stored in the left side (step S141).

4" 5, referring to FIG. 5, when all the media segments do not include the segment to be decoded i " ' ί lowers the video layer level of the new segment 44 (step SH2). As described in the rain, when there is no segment 42 to be decoded in the storage unit it 24 When the decoding 22 is decoded, the pause occurs, and the new segment that the transceiver unit 23 will receive (ie, downloading the second layer, the number is reduced to a minimum, and only the base layer with the most basic quality of the new segment 44 is received ( Base layer) - Please, collocation _ 6, when all media segments do not include decoded segment translation or: Download speed of segment 41 in download (received segment of new segment 44 H ^ W is decoded by segment 42 of to-be-decoded segment 42 At the time of the rate, the downloading of the new incoming data is stopped (step (10)). This situation occurs when the decoding speed of the decoding unit 22 is not touched, and the available bandwidth (ΑΒ) is larger than the decoding unit 22 to be decoded. The decoding rate (DBR) of the segment 42. The decoded segment 43 of the memory block 24 is replaced by the new segment 42 to be decoded to form all the segments 42 to be decoded stored in the storage unit 24. The meta-magic stops the download of the media segment, and the solution 21 201228318 code unit 22 performs the sequential decoding operation on the segment 42 to be processed. The arithmetic unit 21 determines the available storage space (ABS) of the storage unit 24 in the subsequent cycle operation. The decoding operation is gradually increased. Once the storage unit 24 has enough available storage space (ABS), the new segment 44 to be downloaded can be stored, and the operation unit 21 causes the transceiver unit 23 to resume the media segment download operation. Please refer to FIG. 7 Figure 9. When the time interval of the video layer level of each media segment drops to zero, the total time of the undecoded segment is recalculated to adjust the time interval of the video layer level of each media segment, and compare the total time of the undecoded segment ( UST ) and a previous undecoded segment total time (pre_UST) to determine whether to adjust the video layer level of each media segment in the subsequent loop job (step S144). There are three types of adjustment modes in this step: First, the operation unit 21 is Determine whether the total time of the undecoded segment of this time is less than the total time of the previous undecoded segment. When the total time of the segment is not decoded, the operation I unit 21 reduces the number of video layers of the new segment 44 in the subsequent cycle operation. Conversely, when the total time of the undecoded segment is not less than the total time of the previous undecoded segment, the arithmetic unit The system judges whether the total time of the undecoded segment is equal to the total time of the previous undecoded segment. When the total time of the undecoded segment is equal to the total time of the previous undecoded segment, the operation unit 21 maintains each medium in the subsequent cycle operation. The number of audio and video levels of the segment. 22 201228318 _ In addition, the arithmetic unit judges that the total time of the undecoded segment is greater than the total time of the previous undecoded segment, and in the subsequent loop job, increases the number of audio and video levels of the new segment 44. In the above, it is merely described that the present invention is an embodiment or an embodiment of the technical means for solving the problem, and is not intended to limit the scope of the invention. That is, the equivalent changes and modifications made in accordance with the scope of the patent application of the present invention or the scope of the invention are covered by the scope of the invention.

23 201228318 * [Simplified illustration of the drawings] Figure 1A is a schematic diagram of the architecture of the present invention applied to a point-to-point network system; Figure 1B is a block diagram showing the system of the embodiment of the present invention; Figure 2 is a schematic diagram showing the dynamic configuration of the media segment of the present invention. FIG. 3 is a schematic diagram of a storage space configuration of a media segment according to an embodiment of the present invention; FIG. 4A to FIG. 4B are diagrams showing an embodiment of an algorithm for dynamically configuring a media segment according to the present invention; FIG. FIG. 6 is a schematic diagram of processing of a second type of media segment according to an embodiment of the present invention; FIG. 7 is a schematic diagram of processing of a second type of media segment according to an embodiment of the present invention; 8 is a third mode of processing of a third type of media segment according to an embodiment of the present invention. FIG. 9 is a schematic diagram showing a third mode of processing of a third type of media segment according to an embodiment of the present invention; FIG. The media segment of the embodiment of the present invention uses the PLA and DLA to adjust the number of audio and video levels according to the number of pauses. FIG. 11 illustrates the dynamic configuration media according to an embodiment of the present invention. Hierarchical approach flow schematic section; and FIG. 12 illustrates the dynamic embodiment of the present invention, media segments arranged tiers thin portion of a schematic flowchart. 24 201228318 • [Main component symbol description] l 10 Video server 20 Guest device. 21 Operation unit 22 Decoding unit 23 Transceiver unit 24 Storage unit 31 Upper media transmission point 32 Lower media transmission point 41 Downloading segment 42 Decoding segment 43 Decoded segment 44 new segment

Claims (1)

201228318 • VII. Patent application scope: .1. A dynamic configuration media segment hierarchy system, comprising: a storage unit, using (4) deposit county _ less-downloading segment, at least one of at least one segment to be solved; decoded a chip-transceiving unit, the pure-new-integrated at least-downloading segment, wherein the at least one chip: forming the at least-to-be-decoded segment or the at least one: decoding to solve the at least one to-be-decoded segment a decoding unit, a code; and a transport unit for relying on the segment and the I segment of the decoded segment, the number of slices to be decoded. ^. The sound and light layer of the newly-introduced segment of the weekly shark. 2, as described in the first paragraph of the patent application, moves away from the West Gandhi, where the operation list 'the female-segment level is the time, and the segment-the-media segment of the media segment After the time interval between the numbers, the time interval of each new video segment is calculated, and the time interval of each new segment is re-cleared. 4 (4) The audio and video hierarchy of the segment is 3. As in the second paragraph of the patent application scope, When the media segment hierarchy is configured, the first instance of the media segment has a shadow of at least one segment to be decoded. 26 201228318 4. The dynamic configuration media segment hierarchy system described in claim 2, When the storage unit does not store the at least one decoded segment, or the data transmission speed of the transceiver unit is higher than the rate at which the decoding unit decodes the at least one downloaded segment, the operation unit stops the transceiver unit from receiving Transmitting the segment and causing the decoding unit to continuously decode the at least one segment to be decoded. 5. Dynamically configuring the media segment level as described in claim 2 The operation unit recalculates the total time of the undecoded segments to adjust the time interval of the video layer level of each media segment when the operation unit determines that the time interval of the video layer level of each of the media segments drops to zero. 6. The dynamic configuration media segment hierarchy system of claim 5, wherein the operation unit lowers the new segment when the operation unit determines that the total time of the undecoded segment is less than a previous undecoded segment total time. 7. The dynamic configuration media segment hierarchy system according to claim 5, wherein the operation unit maintains when the operation unit determines that the total time of the undecoded segment is equal to the total time of a previous undecoded segment. 8. The dynamic configuration media segment hierarchy system of claim 5, wherein the computing unit determines that the total time of the undecoded segment is greater than a total time of the previous undecoded segment, The arithmetic unit is to increase the number of audio and video levels of the new segment. 27 201228318 9.- Dynamic configuration media The body fragment level method, 1 includes: :: complex: media segment 'which includes less than one of the at least one downloaded segment i and at least one of the resolved segments, (four) into the at least "download 17 segments 'After the segment or the at least;=, forming the at least-to-be-decoded slice::::::==, the at least-to-be-decoded according to the second=decoded segment; and the at least-solved w segment = the at least - the number of segments to be decoded and the number of levels. The number of & is set to 'adjust the video of the new segment. 10. As claimed in the patent scope*, a plurality of media are provided:::== segment level At least - after (four) = after the heart, further includes calculating a total time of the undecoded segment M m 4 % code segment, and using the time interval, the number of audio and video layers of the media: _ segment, the at least - media segment audio and video ^The number of m is $' to adjust the level of each level of the level after the step of reducing the material " segment of the video layer = at least - the segment to be decoded - not = return: use the undecoded segment can be 'ya The time interval of the profit is different from the video level of the media clip. Γ £.] 28 ... 201228318 -11. According to the fourth (4) configuration of the patent (1) fragment level method, wherein the number of the at least one to be decoded and the at least one decoded segment are adjusted according to the county-less In the step of the video layer level of the media segment, in the step, the (four) body does not include f at least - the segment to be decoded is reduced in the video layer level of the new segment. 12=^Patent_The dynamic configuration media segment level method described in item 1(), wherein (4) station-less-down-m is at least-to-be-decoded segment and the at least-segmented segment number, the step of the tone layer level In the case that the media segments are not (four)=, f decoding' or the download speed of the segment in the download is high:,: the decoded rate of the segment to be decoded, the downloading of the new file is stopped, and the decoding is continued. At least one segment to be decoded. Dynamically configuring the media segment level as described in item (7) to reduce the video layer level of each corporal segment _ interval interval media calculation material solution segment total time _ adjust the time interval of each video layer level, and compare the undecoded Inter-chip and - the total time before decoding. 14= please:: the action described in the thirteenth item of the range _^ = cattle segment to form the at least one downloaded segment of the decoded segment for a total time less than the previous unsampling; as for the application (four): the first; The number of levels. In the method, the dynamic configuration media segment level of the first embodiment is configured to include the new segment to form the at least one downloaded segment. The step of 201228318 further includes when the total time of the undecoded segment is equal to the The method of dynamically configuring a media segment level according to claim 13 wherein the new segment is downloaded to form the at least one downloaded segment. The step further includes: increasing the number of audio and video levels of the new segment when the total time of the undecoded segment is greater than the total time of the previous undecoded segment. 30